Cat 85D PTO

hi just wanting to run a grain cart with an 85D but it has no PTO. it seems to have been an option on these tractors so does anybody know if there is a place to find a conversion kit to add PTO. Preferably somewhere in australia

I assume you are referring to a Challenger 85D?
http://www.tractordata.com/farm-tractors/000/9/2/928-challenger-85d.html

It will be expensive to do any option - change your existing machine to a metal pto, hydraulic pto, hydraulic drive, (borrow, lease, rent another tractor with a PTO already fitted) etc.
In North America there are hydraulic drive grain carts for the big tractors with no metal pto shaft at the rear.
https://www.jm-inc.com/manuals/grain_carts/s_hydraulic_drive_kit.pdf

Could be a wrecker's yard Challenger around with a back section with a metal pto shaft. Probably be ruinously expensive to overhaul and recondition to a working condition to swap with/ into your machine's rear section.
http://www.ruralwrecking.com.au/now-wrecking.php

yes it is a caterpillar 85D. regarding the hydraulic drive grain cart what is the unload speed like. if it is fast enough might just convert our existing bin over to hydraulic drive

1 would be too scared to even price it

Cheapest to find one at weckers with a pto
and fit pto to yours

Mark250 said:

1 would be too scared to even price it
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According to NPR 122-0539 is only available as separate parts so it's probably a million lines of individual bits & pieces.

based on my experience, the hyd drive conversion runs the unload auger at about half the speed of a pto drive unless maybe you have better hyd flow than my tractor. my J&M 875 cart came with a pto and i converted it to hyd because the pto kit for a case-ih 9150 was almost impossible to find and $10,000+. the hyd drive conversion will be about $5000+ CAD, but that was 3 yrs ago. Brandt and J&M sell hyd conversion kits for their carts but it would likely depend on the size of cart you have and the size of the unload auger.